If you get a commercial automated call from 401 675 1375 just call the number back right away. Once you reach the number, you'll be asked if you want to be put on their "do not call list". Just press 1. And I did. Hope it will work.
If you call them back, you will confirm that they called a legitimate #. I suspect, the calls will continue.
They buy these phone numbers in bulk, thru the listing brokers, or credit cards, or the phone companies. I used to work for one of those companies, once the process had ben set up it would take minutes to create a mailing list for the buyer - there were nothing that we would not do to make money.